Three Paths to Christ: Experiencing the Supersensible: 143 (The Collected Works of Rudolf Steiner)

Supersensible Impulses: in the Historical Development of Humanity: 216 (The Collected Works Rudolf Steiner)

From Jesus to Christ: (Cw 131) (The Collected Works of Rudolf Steiner)

the Human Heart: Supersensible Organ of Perception (From Works Rudolf Steiner)

the Gospel of John and Other Three Gospels (The Collected Works Rudolf Steiner)